Roadway for automobiles.



NOV. l2, 1907.

lng/$3455? L. S. HAOKNBY.

ROADWAY FOR AUTOMOBILES. APPLIUATIoN FILED Nov. 2, 1906.

No, 870,775;v

UNITED- srarns 'PArENrfoFFEg ...j

LESLIE `s. inioKrusY, oF'sT. PAUL, MINNEs-ofri.

- RoanwAY Fon an'roMoBrLas.

Be it known that'I, LEsLinS. HACKNE'Y, of St. Paul,

Ramsey county, Minnesota, have invented lcertain new sinduseful-Improvements in Roadways for Auto# mobiles,` of Whichthefollowing'is a specification.

The object of my invention -i s.to provide a roadway or track-forautomobiles 'which will .be oi simple and comparatively ineilpensiveconstruction and will `e11.

able a car to be driven at any desired speed over countryroadsregardlessof the weather o rth'e condition of the road.

. My invention consists generally in providing a track 'orthe'wheelaraised-ii preferred above thelevelof 'the roa'dwayand 'hai/ ingconcave,upper'surfaces wherein 15 the wheels will roll ea's'ily Aandwithout any tendency tvsidewiseorlaterabmovement, In'theaccornpanyingdrawings, forming part o tliis specicationflligure l is atransversesectional-view 'of a 'roadway embodyingmy invention'. Fig. 2isasimilar View showing a'rnodied construction. Figli'v is also atransverse sectional view showing another' forin of track ortread forthe wheels.

I n-the drawing, 2 represents a: gravel roadway surface o f which may beoiled if preferred to. p reyent 2 5-dust, and 3 represen't'sblockspreierablyof concrete 4 forming aioundation orbase embedded oneachsideo theroadwaygin the gravel and heldsecurely. thereby forming asubstantial supportfor the tile'4 placed. thereon. T hese .tilearearranged ven d'to end -andform when theroadway is completed,arcontinuo'us track on which the automobile may travel at .a higl ispeed regardles'soi -the vcharacter'of the 'country 4through which itmay. be running. The tile preferably, havev broad-basesvthat aresunkinto thetop of the 'founda- '3 5 ltion blocks 3, `as indicatedliri'Iig. 1, and the wallsofthe tilepreferably are tapered or inclined towardone' i another from the base toward the top and an inwardly inclined'ridge 6 is preferably formed, extending lengthwise of-each'tile on-'its'outer wall' 'making its 4Q nppe'r surface alittle higher on the outsideand tending toguide or direct the wheels ofthe automobile toward theinner sidel of, thetra'ck, thus greatly reducing the j'da'lngcr ofthecanrunningfoff the way. These tile, may

be made of any suitable lengthand braced lengthwise by'a 'web orwall 7adaptcdtosupport the middle portiom of theftr'ead while the inward taperol .thel side .walls cause them to act as' braces for the upper portionofthe tile.

I propose to provide a oo uoie trackV toalim'v cars to.

' Specification of Lottrs'Patenti Application filed 'November 2| 1906..B'rial' No. 341.7795

a-'c'n'cave uppersnrface `9. in` which the wheels travel.- 'The oppositefoundation blocks' are'bonded. ortied turned' points-11. This form ofroadway, as it dispenses with'the use ofthe hollow tile wll'be alittlecheaperto' construct'and probably will be found fully PatentesNov. 12, 1907.,

travelin botl 1 'directions without the necessity oi-pro viding crossing'pointsl i- In' Fig-2 amodiiied. constsuction is shown' which consistsin' providing a fondation 8 of concrete' embedded in the roadway asuitable distance'-and having together by4 means of rods 10extending'transyeselyof .the roadway and having their ends embeddedin'theblocks 8" and anchored therein by means of upwardly as durable andanswer the purpose aswell, except p e'rf.

hapswhcre the" x'oadwayyis rough or the soil muddy or -very sandy.' -Insuch -casesa raised trackl such as isi shown in Fig. 1 would be moredesirable. The upper.

surface og the blocks 8 a`s shown in Fig. 2, iscurved so.

that -,the 'wheels of thei'car '.will have atendency to'run in thecenter ofithe'block, it only beingneces'saryfor the driverto operate"hissteeringapparatus'on the 1 70 curves. -InF ig. 3 I havsshownfanothermodification which consists in providing tile 12 semi-circular in cross*sec;

e found Ieven of sandy or'muddy country at a comparatiyely's'mall'- vexpense and enable. automobiles to .be -run from one -town to anotherover roads which without a. track Yoi.

this kindwould b'e-impassable.

I c laim as' my invention: -1. An vautamobll track' comprising a'rpadway,` a wheel' '-tr'uck ,hildtherein undcomposedola series offoundation' blocks and hollow ktile blocvks supported thereon and saidtlle blocks having oncuve`snrfxices-whereoli' th Vwheels'rollfsnbstantlally ns descrlbed.

2.' A track' forautoxnobiies comprising u roadwayffouf lationA blocksembedded in saidy roadway, tile. blocks mounted on said 'foundationblocks. and having concave upper surfaces raised above the level of.Said roadway,- the outer'cdges of said 'tile blocks forming guides forthe 95 wheels, nhstnntlully as described.

3. An 'automobile track comprising@ roadway," il series `of conci-eleblocks embedded therein o n cach side'of .said

roadway, hollow tile tapered from4 the base toward the top and` havingtheir lower portions embedded. in-tho top' 100 of said of saidfoundation blocks, and the outer edges of Athe tops l being raised uhm-etheir inner ,poi-tions; to

is, substantially as described.

n roadway, a -series of foundation 'hollow tile having their lower ofsaid foundation blocks, of said tile being rai'se form guidos for i. Atrack .L A bocks embedded A portions embedded ,n tie 10p and the outeredges of the -above heir inner portions to forml guides for the'wheels.

therein in para'lie'rows, and blocks composed of hollow l tile mountedon said oumlatione to'form a continuous

